diff --git a/en_US/howto/manage.iredapd.md b/en_US/howto/manage.iredapd.md
index 24003975..479325c8 100644
--- a/en_US/howto/manage.iredapd.md
+++ b/en_US/howto/manage.iredapd.md
@@ -183,8 +183,10 @@ White/blacklisting is controlled by plugin `amavisd_wblist` (file
 - a single user: `user@domain.com`
 - a single domain: `@domain.com`, `@sub.domain.com`
 - entire domain and all its sub-domains: `@.domain.com` (there's a dot after `@`)
-- anyone: `@.` (the ending dot is required)
+- anyone: `@.` (the ending dot is required). it catches all addresses.
 - top-level domain: `@.com`
+- single ip address: `192.168.1.2`
+- CIDR network: `192.168.1.0/24`
 
 ##### Sample usages
 
diff --git a/html/manage.iredapd.html b/html/manage.iredapd.html
index e016921b..5cf014d2 100644
--- a/html/manage.iredapd.html
+++ b/html/manage.iredapd.html
@@ -211,8 +211,10 @@ parameter <code>plugins =</code>:</p>
 <li>a single user: <code>user@domain.com</code></li>
 <li>a single domain: <code>@domain.com</code>, <code>@sub.domain.com</code></li>
 <li>entire domain and all its sub-domains: <code>@.domain.com</code> (there's a dot after <code>@</code>)</li>
-<li>anyone: <code>@.</code> (the ending dot is required)</li>
+<li>anyone: <code>@.</code> (the ending dot is required). it catches all addresses.</li>
 <li>top-level domain: <code>@.com</code></li>
+<li>single ip address: <code>192.168.1.2</code></li>
+<li>CIDR network: <code>192.168.1.0/24</code></li>
 </ul>
 <h5 id="sample-usages">Sample usages</h5>
 <ul>